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Showing: 321 - 360 of 697 results
  1. Behind the scenes: Addgene’s new search engine and more

    Type
    Blog Post
    Published
    Dec. 12, 2019, 2:22 p.m.
    ...visible part behind these changes: the backend technology that powers the new website search. Tackling ... resources, blog posts or reagent items.  The technology behind Addgene’s new search  Like millions of...PI labs and institutions. There are many more technical details that make our new search engine unique...
  2. Pooled CRISPR Libraries Offer Genome-Wide Control for Large-Scale Functional Screens

    Type
    Blog Post
    Published
    Feb. 24, 2015, 7:50 p.m.
    ...CRISPR technology has changed how scientists edit and control genes, but according to the Broad Institute's...activate essentially any gene,” she says. The technical leap from mutating and deactivating a gene or ... require access to next generation sequencing technology. These libraries are lentiviral in nature, ...
  3. Kiran Musunuru on the Newest TALEN Genome-Editing System

    Type
    Blog Post
    Published
    Dec. 10, 2013, 3:13 p.m.
    ...to essentially any DNA sequence desired. This technology allows you to create a pair of designer proteins...on traditional homologous recombination. That technology had been used for decades to generate knock-out...That’s the revolutionary aspect: TALENs take a technology that was difficult for all but the most experienced...
  4. Antibodies 101: Selecting the Right Antibody

    Type
    Blog Post
    Published
    March 15, 2022, 1:15 p.m.
    ... an antibody that is directly conjugated to a detection substrate, such as a fluorophore, or a conjugated...do you know about the vendor and the vendor’s technical support? An antibody from a vendor that you use...frequently, with a responsive and knowledgeable technical support team, is a safer bet than one from a large...
  5. Antibodies 101: Polyclonal Antibodies

    Type
    Blog Post
    Published
    July 14, 2021, 1:15 p.m.
    ...experiments that require multiple antibodies that each detect a different antigen. To pre-adsorb the antibodies...section), it may be advantageous if you are trying to detect a protein in low abundance or whose conformational...Overlooked benefits of using polyclonal antibodies. BioTechniques 65:127–136. https://doi.org/10.2144/btn-2018...
  6. Hot Plasmids April 2018 - Protein Degradation, Nanoscopy, FIRE-Cas9, and Yeast Expression Tools

    Type
    Blog Post
    Published
    April 23, 2018, 2 p.m.
    ... by the reliance on pH-based biosensors used to detect the maturation of neutral vesicles to more acidic...For further reading on fluorescent microscopy techniques, the first author of this article, Dr. Douglas...with classical gene overexpression and knockout techniques. Find the plasmids from Aranda-Díaz et al. Aranda-Díaz...
  7. Hot Plasmids - March 2020 - base editors, GEVI, MoClo, and optogenetics

    Type
    Blog Post
    Published
    March 3, 2020, 2:15 p.m.
    ...Biomedical Engineering, 2020. PubMed PMID: 31937940. Detection of neural activity using a red fluorescent genetically...encoded voltage indicators (GEVIs) are proteins that detect and output the voltage changes in neural activity..., has increasingly been recognized for its biotechnological applications including conversion of CO2 into...
  8. CRISPR Meets Synthetic Biology: A Conversation with MIT’s Christopher Voigt

    Type
    Blog Post
    Published
    April 22, 2015, 2:06 p.m.
    ...it, his lab at the Massachusetts Institute of Technology has been “working on new experimental and theoretical... collision that’s taking place between CRISPR technology and synthetic biology, the tools he’s making ...all heading? Voigt: The top products out of biotechnology today are things like butanol - very simple ...
  9. Plasmids 101: Modular Cloning

    Type
    Blog Post
    Published
    March 12, 2024, 1:15 p.m.
    ...described above, and not any particular cloning technique. Though rarer, you can find MoClo that relies ...assembled into many combinations. Even with current technologies, it can be extremely hard to predict how a single... if you want to learn more about this cloning technique! Many thanks to Rob Hurt for his help on this ...
  10. CRISPR in the Clinic

    Type
    Blog Post
    Published
    Nov. 2, 2023, 1:15 p.m.
    ...There can be no doubt that CRISPR/Cas9 technology has been a breakthrough for the genome-editing field... obstacles for future CRISPR therapies CRISPR technology is rapidly evolving, and many of the challenges...taken advantage of what our current delivery technologies are suited for. For example, lipid nanoparticle...
  11. Antibodies 101: Choosing the Right Isotype

    Type
    Blog Post
    Published
    April 6, 2023, 3 p.m.
    ...antibodies and found that across suppliers there was a detection bias of IgG2a > IgG2b > IgG1 (Manning 2012).  ... the anti-mouse secondary antibodies used for detection bind to non-target immunoglobulins naturally present.... Chapter 15 Postembedding Immunocytochemical Techniques for Light and Electron Microscopy. In Methods...
  12. Quickest Way to Deposit Plasmids: The Deposit Spreadsheet

    Type
    Blog Post
    Published
    March 8, 2017, 3:15 p.m.
    ...very easy — our tech transfer team will communicate with your organization’s technology transfer office... ship the samples to Addgene and contact your technology transfer office about the MTA. Pro Tip! Download...
  13. Simple CRISPR-based Epigenetic Editing: dCas9-directed DNA Demethylation

    Type
    Blog Post
    Published
    Dec. 14, 2021, 2:15 p.m.
    ...there were unusual patterns of DNA methylation detected in a human disease: cancer (Feinberg & Vogelstein...the original methylated strand is diluted to undetectable amounts: ergo, DNA demethylation! With optimization...repeat and scFv–TET1 catalytic domain fusions. Nat Biotechnol 34, 1060–1065. https://doi.org/10.1038/nbt.3658...
  14. Rabies and Neuronal Tracing

    Type
    Blog Post
    Published
    May 29, 2018, 1:51 p.m.
    ... of us learned in biology is that the body’s architecture and plumbing are important. We started with ...oxygenates the body. However, in neuroscience, this architecture is frequently still an open question. The connections...powerful development in neural tracing. Using these technologies in combination with molecular tools (e.g., optogenetic...
  15. CRISPR 101: Anti-CRISPR Proteins Switch Off CRISPR-Cas Systems

    Type
    Blog Post
    Published
    July 23, 2020, 1:20 p.m.
    ...updated Jul 23, 2020 by Jennifer Tsang. CRISPR-Cas technology is constantly evolving. Variants of Cas proteins...be engineered to “armor” therapeutic phages to protect them from pathogenic bacteria’s CRISPR-Cas system... applications: natural brakes for CRISPR-Cas technologies. Nat Methods 17:471–479 . https://doi.org/10.1038...
  16. Meet an Addgenie: Insights into Grad School, Career Paths, and More

    Type
    Blog Post
    Published
    June 25, 2020, 1:15 p.m.
    ... school when she was hired full time as a Lab Technician. “I was so tired of being in school so I just... is not true at all. Racheal Komuhendo, a Lab Technician, dreamed of becoming a doctor. After taking a...circumstance. She was working as a research and technical assistant, when her life changed––she had a daughter...
  17. Mouse Modeling, Part 2: Breeding and Crossing Mice

    Type
    Blog Post
    Published
    Aug. 6, 2019, 12:55 p.m.
    ...of our mouse modeling blog series, we covered techniques that can be used to introduce genetic modifications...conditional knockin or knockout mice. While these techniques are each useful for introducing one modification...) and using PCR with the appropriate primers to detect your targeting vector or gene of interest. 2. Breed...
  18. 5 Tips for Troubleshooting Viral Transductions

    Type
    Blog Post
    Published
    Aug. 11, 2016, 2:23 p.m.
    ...biological tasks, both of which are factors in the technical challenges they can present. Many researchers ...hail Marys that have helped me troubleshoot some technical obstacles when working with virus: 1. Viral vectors... quantification as measured with branched-DNA technology." Journal of clinical microbiology 37.6 (1999...
  19. Cpf1 Update: Comparison to Cas9 and NgAgo

    Type
    Blog Post
    Published
    July 14, 2016, 2:30 p.m.
    ...predicted off-target sites, Cpf1 does not mediate detectable off-target cleavage. Most gRNAs directed low-...specificities of Cpf1 endonucleases in human cells. Nat Biotechnol. 2016 Jun 6. PubMed PMID: 27272384 Find plasmids...-Cas Cpf1 nucleases in human cells." Nature Biotechnology (2016). PubMed PMID: 27347757. Find plasmids...
  20. Plasmids 101: FLEx Vectors

    Type
    Blog Post
    Published
    April 28, 2016, 2:30 p.m.
    ... Figure 1 (modified from Schnutgen et al. Nat Biotech 2003): Basic FLEx switch will express BFP in the... Figure 2 (modified from Schnutgen et al. Nat Biotech 2003): In the presence of Cre, GFP expression is... able to distribute materials containing FLEx technology. Read the genOway press release for more information...
  21. Plasmids 101: Terminators and PolyA signals

    Type
    Blog Post
    Published
    March 31, 2016, 2:30 p.m.
    ...degradosome, which contains enzymes that cut RNA not protected by secondary structure. It is thought that poly... tail is important for stability of the mRNA, protection from degradation, and is integral to the nuclear...Controls Gene Expression Learn about New Cloning Techniques Read all of our Plasmids 101 Posts Resources...
  22. Viral Vectors 101: Voltage Indicators

    Type
    Blog Post
    Published
    Jan. 30, 2024, 2:15 p.m.
    ... where rhodopsin functions as both the voltage detector and fluorescent signaler. The pro of this system...several targeting domains. The quencher and voltage detector in this system was dipicrylamine, a lipophilic...high-speed, bright, red fluorescent voltage sensor to detect neural activity. Sci Rep 9, 15878 (2019). doi: ...
  23. Viral Vectors 101: Producing Your rAAV

    Type
    Blog Post
    Published
    July 16, 2024, 1:15 p.m.
    ...Baiker, A. (2012). Universal real-time PCR for the detection and quantification of adeno-associated virus serotype...adeno-associated virus vectors with sensitivity sufficient to detect single infectious events. Human Gene Therapy, 15...addgene.org  AAV Titration by qPCR Using SYBR Green TechnologyAAV Titration by ddPCRAAV Purification by Iodixanol...
  24. Cloning Mammalian Cells with the Agarose Method

    Type
    Blog Post
    Published
    Sept. 7, 2017, 12:17 p.m.
    ...Advantages of the agarose cloning method The agarose technique should be useful to scientists who wish to rapidly... from a population of transfected clones. The technique is applicable to a wide variety of cell lines,...physiological properties. An advantage of this technique is the potentially large number of single clones...
  25. Truncated gRNAs for Regulating Gene Expression

    Type
    Blog Post
    Published
    Jan. 10, 2017, 3:37 p.m.
    ...Biologically Inspired Engineering. CRISPR/Cas9 technology has revolutionized the fields of molecular biology...discovery through the creation of innovative technologies. To date his group has develop several popular...catalytically active Cas9 nuclease." Nature biotechnology (2015). PubMed PMID: 26436575. PubMed Central...
  26. PCR Applications for Copy Number Variation Assays

    Type
    Blog Post
    Published
    April 26, 2022, 1:15 p.m.
    ... on and so forth. This also serves as a light technical control - an RQ value of 1.5 means you have either...chemistry (see image, left, of droplet immersion technique, courtesy of CAR15.) Each droplet contains a primer...Molecular Biology Reference Molecular Cloning Techniques References Bell AD, Usher CL, McCarroll SA. ...
  27. No Llamas Required - Synthetic Nanobodies Against Membrane Proteins

    Type
    Blog Post
    Published
    June 18, 2020, 1:15 p.m.
    ...plasmid, using the fragment exchange (FX) cloning technique which uses Type IIS restriction sites (Geertsma...protein of interest. The Seeger lab used the ELISA technique described in their protocol because it is less...protein is added and after a few washes, binding is detected using a colorimetric reaction. After the ELISA...
  28. Academic vs. Industry Postdocs

    Type
    Blog Post
    Published
    Nov. 13, 2018, 1:22 p.m.
    ...understanding of the fast, deadline-driven pace of biotech. In other words, industry postdocs already have...Biogen, Amgen, New England Biolabs, Regeneron, and Genentech, among others, and the list is growing. Some post... a position open up. Other companies, such as Genentech, will not. The point is that each company has ...
  29. Tips for a 1st time AAV user (by a Rookie AAV user)

    Type
    Blog Post
    Published
    Oct. 23, 2018, 11:49 a.m.
    ...the AAV production process. Either SYBR green technology or a TaqMan primer/probe set can be used and ...sample for the DNAseI digest. Use good sterile technique when handling your AAV plasmid standard and AAV...Baiker, A. (2012). Universal real-time PCR for the detection and quantification of adeno-associated virus serotype...
  30. CRISPR 101: Mammalian Expression Systems and Delivery Methods

    Type
    Blog Post
    Published
    Sept. 24, 2015, 2:30 p.m.
    ...updated Sep 30, 2020 by Marcy Patrick. CRISPR technology has been widely adopted for genome editing purposes...cheaper, faster, and easier than prior editing techniques. More and more CRISPR tools are being published...how you will evaluate the outcome: Will you be detecting insertions/deletions using a mismatch repair assay...
  31. AAVs in Retinal Gene Therapy

    Type
    Blog Post
    Published
    July 31, 2018, 12:55 p.m.
    ...therapy. The year was 2001 and I started a job as a technician in a lab using adeno-associated viral vectors... I quickly became fascinated by this emerging technology and its potential for the treatment of some genetic...research is being done to further improve the technology: engineering of new capsid variants, designing...
  32. A Guide to Starting Your Own Journal Club

    Type
    Blog Post
    Published
    Feb. 6, 2020, 3 p.m.
    ...club occurs with a small technical team (single lab or team), a deep technical dive on single papers could...must stay current with literature and emerging technologies to remain competitive and relevant. Enter: the...
  33. Simplify Cloning with in vivo Assembly

    Type
    Blog Post
    Published
    Oct. 18, 2018, 12:37 p.m.
    ...experimental process. The majority of current cloning techniques involve the assembly of a circular plasmid in... 1991, Bubeck et al., 1993). But why did this technique fail to gain traction? It is likely that both ...ends on DNA using polymerase chain reaction." Biotechniques 10.1 (1991): 62-66. PubMed PMID: 2003926. 2....
  34. AAVs CREATed for Gene Delivery to the CNS and PNS

    Type
    Blog Post
    Published
    Sept. 28, 2017, 2:01 p.m.
    ...CNS and PNS.That is until the Gradinaru Lab at Caltech stepped up to the challenge. Find the PHP Plasmids...Recombinase-based AAV Targeted Evolution. In this technique, a pool of mutant AAV capsid (cap) expressing ...widespread gene transfer to the adult brain. Nature biotechnology. 2016;34(2):204-209. PubMed PMID: 26829320. ...
  35. Plasmids 101: Colony PCR

    Type
    Blog Post
    Published
    May 12, 2016, 2:30 p.m.
    ...key steps to colony PCR are: 1) design primers to detect the presence of your insert; 2) set up a standard...Running a no template control PCR reaction for detecting contamination is also a good idea.    Analyzing....org Read about Choosing a Molecular Cloning Technique Learn to Perform a Bacterial Transformation Deposit...
  36. CRISPR Antimicrobials

    Type
    Blog Post
    Published
    May 3, 2016, 2:30 p.m.
    ...reduce this likelihood. The key problem with these techniques is efficient delivery, as the antimicrobial must...efficiently-delivered RNA-guided nucleases.” Nature Biotechnol. 32(11): 1141-5. (2014). PubMed: PMID 252409288...produce sequence-specific antimicrobials.” Nature Biotechnol. 32(11): 1146-50. (2014). PubMed: PMID 25282355...
  37. Your Lentiviral Plasmid FAQs Answered

    Type
    Blog Post
    Published
    April 23, 2014, 1:08 p.m.
    ...offer the maximal biosafety available for the technology. The minor limitation in using the 3rd-generation...scientists often refer to as “retroviruses” are technically gamma-retroviruses - another, separate member...transfer vectors for transient transfections? A2: Technically, yes. Will it actually work? That depends. The...
  38. Hot Plasmids - November 2023

    Type
    Blog Post
    Published
    Nov. 14, 2023, 3:35 a.m.
    ...two deposits that increase the utility of this technique.  By engineering a light-sensitive LOV domain ... tapes for intracellular recordings. Nature Biotechnology, 41(5), 631–639. doi: 10.1038/s41587-022-01524... using thick-section and whole-mount labeling techniques. The Trimmer lab’s anti-PSD-95 [K28/43R] recently...
  39. New Acoustic Reporter Genes: Ultrasound Imaging of Gene Expression

    Type
    Blog Post
    Published
    Jan. 24, 2023, 2:15 p.m.
    ...integrate the mARGs using PiggyBac. Gas vesicles are detectable under ultrasound and phase contrast microscopy...bioengineering. They are both members of the Shapiro lab at Caltech.   References and Resources References Piraner...monitoring of tumors and tumor-homing bacteria. Nat Biotechnol 1–13 (2023) doi:10.1038/s41587-022-01581-y   ...
  40. Plasmids 101: Shuttle Vectors

    Type
    Blog Post
    Published
    May 20, 2025, 1:15 p.m.
    ...A puromycin resistance gene on your vector can protect both plasmid-carrying bacteria and eukaryotes. ...protein synthesis, and the neomycin resistance gene protects against any of them. But different aminoglycosides...host range plasmids shuttle vectors? While it’s technically accurate to say that shuttle vectors have a “...
Showing: 321 - 360 of 697 results